YORBA LINDA, Calif. — A California postseason track meet on Saturday opened with a "Save Girls’ Sports" rally outside the gates and ended in familiar fashion, as one athlete again separated from the field in the jumping events, highlighting growing concerns over competitive fairness in girls’ sports.

Saturday’s CIF Southern Section Division 3 preliminaries in Yorba Linda drew attention before competition began, with demonstrators protesting California’s policy allowing transgender athletes to compete in girls’ sports.

Jurupa Valley senior AB Hernandez dominated three jumping events in the CIF Division 3 prelims.…